What is the coordination number and
oxidation state of metal ion in the complex
[Pt(NH)C1]®?
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( i ) [Co (H 20) (CN) ( en)2 ] 2
+
=> X + 0 + ( -1) + 2 (0) = +2
X -1 = +2
X = +3
(ii) [ CoBr2 (en)2 ]
2
+
=>x+ 2(-1 )+ 2(0)=+1
X - 2 = +1
X = +3
( iii) [ Pt Cl4 ] 2
=> X + 4 ( -1 ) = -2X
X = +2
( iv) K3 [Fe (CN)6 l
=> [ Fe ( CN )6]
3
-
=> x + 6 ( -1 ) = -3
X = +3
( v) [ Cr(NH3)3 Cl3 ]
=>x+ 3(0)+ 3 (-1 )= 0
x-3 = 0
x = 3
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